Combined punch and countersinking machine



w. R. ORMES. COMBINED PUNCH AND COUNTERSINKING MACHINE.

APPLICATION FILED APR.16. 1919 Patented June 8, 1920.

3 SHEETS-SHEET 1.

QB 2 A w. R. ORMES.

COMBINED PUNCH AND COUNTERSINKING MACHINE.

APPLICATION FILED APR. 16, 1919.

Patented June 8, 1920.

3 SHEETSSHEET 2.

W. R. ORMES.

COMBINED PUNCH AND COUNTERSINKING MACHINE. AFPLICAUON FILED APR. 16.1919.

1,342,865. Patented June 8 1920.

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\ I x WVE /TQ/ UNITED STATES PATENT OFFICE.

WILLIAM R. ORMES,

OF WALTHAM, MASSACHUSETTS.

Application filed April 16,

To all whom itmag concern:

Be it known that I, WILLIAM R. OnMns,of lValtham, in the county ofMiddlesex and State of Massachusetts, a citizen of the United States,have invented a new and Improved Combined Punch and CountersinkingMachine, of which the following is a specification.

The punching and finishing of a screw hole in a metal plate is usuallythe result of two operations performed by two machines, viz: apress-carrying 'punch by which the hole is first made, and second, thecutting of a countersink to receive the head of a screw, this being doneupon a separate machine.

My present invention relates to a combination machine whereby both ofthese operations may be performed without removing the work.

My invention will be understood by reference to the drawings, in which-Figure 1 is'a side view, and

Fig. 2 is a horizontal section on line 2--2 of Fig. 1;

Fig. 3 being a side elevation of the working mechanism in punchingposition, and

Fig. 4c a vertical sectional View of the same taken during thecountersinking operation.

The preferred embodiment of my invention is shown in the drawingsmounted on a press of ordinary charactera type of machine so well knownthat its further description is unnecessary except to say that itcomprises a bed A and a verticallymovable head B. On the bed A ismounted a table C carrying a suitable die 0 of usual character. C is aseparator attached to the table 0 at its rear end, 0 its front endforming an overhang.

To the part C of the separator are pivoted as at 0 two arms or channelirons C which are connected at their outer or free ends by an angularcrossbar c and are held down by springs C attached at their rear ends tothe part 0 The crossbar serves as a clamp to hold the work D against thetable C.

As the punch is lifted out of the work the work will be heldby theoverhang and it and the clamp will prevent the work from rising with thepunch a material distance.

The head B is provided with a socket in which is set the shank E, whichis held in place by a screw 6 and carries a spindle E this mechanismbeing of usual construction,

Specification of Letters Patent.

Patented June 8, 1920.

1919; Serial N0. 290,485.

6 being the punch attached to the spindle in the usual way. Around thespindle E is a sleeve F a portion of which is shaped to form a pulley F.Its lower end is shaped to form a tool holder in whichis set thecountersink 7 which is of usual construction except that it has apassage through it so that it may be centered by, and rotate about, thepunch 6 The pulley F is operated by a belt F passing around pulleys Fmounted on an axis in supports F on the table C. Above the pulley thecountersink holder is grooved as at g and in the groove is a ring Gwhich is pivotally mounted as at h in a strap lever H pivoted as at h tohangers h carried on the under side of the press B, this constructionbeing such that the countersink holder and countersink will be freelyrotated in the ring G about the tool holder E as an axis, and the ringand countersink holder may be moved vertically with relation to thespindle on which it turns, by pressing down or raising the free end ofthe strap lever H.

In the operation of my device the strap lever H being in its upperposition as shown in Fig. 3, the press is brought down so that the punchdrives its hole through the metal.

which in Figs. 3 and 4 is shown as a flat plate D In Fig. 1 the work isshown as a corrugated plate such as is used as a foundation plate for asafety tread so called. The operator then depresses the outer end (notshown) of the strap lever H so as to bring the countersink down intocontact with the plate. It will be noted that the countersink isrotating all this time and when depressed it trims the opening which thepunch has made in the plate and forms a countersink therein of anyrequired depth. When its work is finished the operator lifts thecountersink holder and releases the head so that both tools are raisedout of contact with the work, the clamp and overhang, if it be usedstripping the work off from the punch, and the clamp is raised, so thatthe plate D or D may be moved the requisite distance for the next hole,when the operation is repeated of first punching a new hole and. thencountersinking it.

It is evident that my invention may be otherwise embodied, for as far asI know there has been no machine in which these two operations arecarried on consecutively and without removal of the work. Other toolsmay besubstituted for the punch'and countersink if desired as I do notmean to limit my invention to the tools named.

What ll'iclaim -as my invention is-:-

1. In a machine ofthe kind des'cribed, a verticallyrecipro'ca'ting Head,a punch mounted therein, a countersink mounted" concentric with saidpunch to be reciprocated independently thereof, and means for rotatingsaid countersink.

2. Ina machine of the. kind described, a verticallyreciprocating head, apunch mounted. therein, a countersink mounted concentric-with said:punch. to be recipr'o cated therewith and also independently thereof,and 'means for countersink about said punch.

3. In a machine of. the kind described, vertically,-'reciprocating headcarrying aspindle, a punch, mounted in said spindle,

a sleeve. mountedconcentric with said spindle, means for rotating saidsleeve, means for moving said sleeve longitudinally with relation tosaidspindle. comprising a lever, and:a rotary tool-located'in the endofsaid sleeve.

4;. In, a machine of tliekind described, a

rotating. said vertically-reciprocating head carrying a spindle, a punchmounted in said spindle, a

sleeve mounted concentric with said spindle,

ring withim which it may be rotated, said.

ring being connected to said lever, and a rotary 'tbollocatedin saidsleeve. 7

5. In a machineof the kind described, a

or verticallyreciprocating head, a. punch mounted therein, a countersinkmounted concentric with said punch. to. be reciprocatedtherewith andindependently thereof, andfmeans for rotating; said countersink aboutsaid. punch,, said punch" serving as a bearing for said countersink. V

6. In a machine. of the kind described, a' vertically-reciprocatinghead. carrying a tool liolder,.ia second tool hol der-.-mountedconcentrically with. said first toolfliolder to be reciprocatfedtherewith andlreciprocated and rotatedi independently thereof, and meansfor, reciprocating and rotatinghit.

WILL AM R. 0mins.

, means for rotating said sleeve, means for

